What input power does this drive require?
Three-phase 380–480 VAC at 50/60 Hz
1 actual photo shown first. Reference images are model-matched and must be confirmed before purchase.
ABB
ACS550-U1-023A-4
ACS550-U1-023A-4 AC drive, 380–480 VAC, 23 A, NEMA 1
ABB
From $4,800In stockDiscontinued
Product Description
This ACS550-U1-023A-4 adjustable frequency AC drive is designed for three-phase induction motor control in industrial environments requiring robust performance and straightforward commissioning. Operating on 380–480 VAC, 50/60 Hz input, the unit delivers up to 23 A (normal duty) with integrated EMC filtering and NEMA 1/IP21 enclosure for general-purpose indoor installations. The drive supports scalar V/Hz and sensorless vector control modes, with a detachable LCD control panel enabling parameterization, diagnostics, and macro-based application setup to reduce start-up time. Built-in Modbus RTU and support for fieldbus adapters streamline integration into existing automation networks. Coated boards enhance reliability in demanding ambient conditions, while wall-mount packaging with an R3 frame simplifies retrofit applications. Typical applications include fans, pumps, and general machinery where reliable speed regulation, energy optimization, and minimal downtime are priorities. The model is part of the ACS550 series and has been superseded by ACS580-01-023A-4 in new designs, but remains widely supported and serviceable in the field.
Key Features
- •380–480 VAC three-phase input, 50/60 Hz
- •23 A normal duty output rating
- •Integrated EMC filter, NEMA 1 IP21 enclosure
- •LCD control panel with application macros
- •Sensorless vector and V/Hz control modes
- •Built-in Modbus RTU, fieldbus adapter options
- •Wall-mount R3 frame for compact installations
Buy Options
Condition, indicative price, stock, and lead time. Confirm current availability via RFQ.
ConditionPriceAvailabilityLead time
New
Price: $6,080
Availability: 16 in stock
Lead time: ~1 day lead
Never Used
Price: RFQ
Availability: Sourced on request
Lead time: Quoted after RFQ
Used
Price: $4,800
Availability: 3 in stock
Lead time: ~1 day lead
Specifications
- Model
- ACS550-U1-023A-4
- Input Voltage
- 380–480 VAC
- Input Phase
- Three-phase
- Frequency
- 50/60 Hz
- Output Current
- 23 A (normal duty)
- Power Rating
- Approx. 11 kW / 15 hp (normal duty)
- Enclosure
- NEMA 1 / IP21
- Control Panel
- LCD
- Mounting
- Wall mount
- Width
- 4.9 in
- Depth
- 8.7 in
- Height
- 18.5 in
- Series
- ACS550
- EMC Filter
- Integrated
- Replacement Model
- ACS580-01-023A-4
- Part #
- ACS550-U1-023A-4
- Category
- Drives
- Subcategory
- Drive
- Weight
- 20.00 lbs
- Construction
- US Installation and NEMA Compliance
- Output Current Rating
- Three-Phase, 380-480 VAC, 50/60 HZ, 23 A, 11 KW
- Option 1
- UL Type/NEMA 1
- Option 2
- UL Type/NEMA 1
Before we quote this part
Actual photos when available
Nameplate, condition, and visible wear can be shared before quote when stock photos are not enough.
Test notes for used units
Power-on or function test status is stated when available, with clear condition grading.
Trackable global shipping
DHL, FedEx, UPS, or forwarder options can be quoted with packing photos and tracking details.
Clear DOA boundary
For tested units, quote terms can include 7-day DOA support unless otherwise stated.
Independent sourcing disclaimer
We are not an authorized distributor, reseller, or representative of Siemens, Mitsubishi, Omron, or other manufacturers listed on this site. All product names, trademarks, brands, and logos are the property of their respective owners. Products may be used, refurbished, surplus, or sourced from the secondary market unless otherwise stated.
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FAQ
What is the output current rating?
23 A normal duty with approximately 11 kW/15 hp capability
Is a control panel included?
Yes, an LCD control panel for setup and diagnostics is included
What enclosure rating does it have?
NEMA 1/IP21 for indoor general-purpose use
What is the recommended replacement?
ABB ACS580-01-023A-4 is the designated successor